39954516 has 24 divisors (see below), whose sum is σ = 106545600. Its totient is φ = 11415552.

The previous prime is 39954493. The next prime is 39954517. The reversal of 39954516 is 61545993.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39954517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237741 + ... + 237908.

It is an arithmetic number, because the mean of its divisors is an integer number (4439400).

Almost surely, 2^39954516 is an apocalyptic number.

It is an amenable number.

39954516 is an abundant number, since it is smaller than the sum of its proper divisors (66591084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39954516 is a wasteful number, since it uses less digits than its factorization.

39954516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475663 (or 475661 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The square root of 39954516 is about 6320.9584716244. The cubic root of 39954516 is about 341.8655125945.

It can be divided in two parts, 39954 and 516, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 39954516 in words is "thirty-nine million, nine hundred fifty-four thousand, five hundred sixteen".